module.exports = {
  presets: [
    '@vue/app'
  ],
  env: {
    development: {
      /*
      babel-plugin-dynamic-import-node plugin
      only does one thing by converting all import() to require().
      This plugin can significantly increase the speed of hot updates,
      when you have a large number of pages.
      https://panjiachen.github.io/vue-element-admin-site/guide/advanced/lazy-loading.html
      */
      plugins: ['dynamic-import-node']
    },
    production: {
      // 生产环境去除console
      plugins: ['transform-remove-console']
    }
  }
}
